Mattress-tufting machine.



G. DILLON.

MATTRESS TUFTING MACHINE.

APPLIcMIoN FILED MAY 8. |916.

1,21 1,924. Patented Jan. 9,1917.

2 SH EETS-S HEET I lo IS 1s r Q Q s 2 d Jan. 9, 1917. MEETS-swzm 2.

Pat

G. DILLON.

MATTRESS TUFTING MACHINE.

APPucAnon FILED 11m12.191s.

ws/v To fr UNITED STATES PATENT oEEroE.

GUY DILLON, OiF INDIANAPOLIS, INDIANA, ASSIGNOR TO FRANK H. HIRSCHMAN,0F

INDIANAPOLIS, INDIANA.

MATTRESS-TUF'IING MACHINE.

Speclcnlion of Lctters'Pntunt.

Patented Jon. 9, 1917.

Application filed May, 1916` Se1lnlNu.9G.2-23.

Ile it known that l. (iur Dumon, n citizen ol the United States,residing nt lndinu upolis, in the county of yMarion nncl Stute ofInilizinu, hure invented eertnin new and use ful Improvements; inUuttress-Tultng Mnchilies` of which the following is n specilication Thefinnl operation in Lhc mnnu'lncture of bod nniltresses consists,genernlly, in tuflingfi the mattresses; that to say, the upper und lowersides ol the ticks ure tied together nt uniforml)l spliced points, so:is to holfl the nnitlress fillings in plufxe. This tyingf to` gether ofthe side covering of the mattresses is ueromplishell by means of nsnitnblc twine which is pais-sed in two slightly sepnrutecl Strnmls inthe forni of u loop through the mulressee, so ne to hind in n pnrl ol'rho fillings, the twine being tied together nt the bottom oi themattresses'. in order to rom plete the bands, lifter which the sti-ondof twine lending from the lanot to thel twine suppl)I source s rut abovethe mnttresses. The tufts` per se, are merely pieren of rove or slubia`of rotten cut into suitable lengths whirh urn inserted between thelooped ends of thebnnds nud the Surface of the mot-- tresx coverings toprevent the twine. from cutting through.

The tufting of mattresses today is nrromplished ulmost entirely by meansof suitable nnmhines-known in the. art us tufting muthinrs--in whichf nsabove stated, the twine is tied ut the hottom 'of' the nmttreb: whileIthe supply of twine is located above the ninttrebb, nml ns the twinecutting mechanism is also located nhove the mattress, a strnnd of twine,indi-.pendent of the tied loop, extending from the knot to the. twine.cutting meuhinusxn is wats-ted. As un :wei-nge mattress conti-.ins nboutforty bends, it readily heco'mes upInrre-nt that there is nn excessivewfistcin twine'. But thinl wnste is not the lcnst, for the reason thattiter n lnnttress is completely tufted it must be turned over for theremoviil of the. loose, dangling ends of the twine, which must he donehy lnnnl, canoeing considerable loss in time und expense of labor.

This invention relntes to n n'nichine 'for tuftin r bed mattresses; undthe ohject of the invention consists in the provision of u nmchine ofthe nlaoro character in which not only u. considerable saving iseffected in the l in which-- Figure l is n trout elevation of the henriOf :i inoltre trilling nnlthiln'. with the base frame of tln nun-hierein section, showing," the upproxinmte |nr-,ition of' the needleinimerliulelil :liter Ihr. knot is drown tight. Fig/1; is :l vir-wluimilor to Fig. 1 except that the noodlii hh'iwn entirely willnllnzn'nfrom thil mnllreas :unl the knot moved to the top of the nmtllv. hip'.Il in :i l'rug'inentnrv fletnil sei'lionul riew through n heilnini-(met. on un enlarged wille, .,l|o\\'in `r more elenrlii theposition ol' the needl-y und linot illusl trotefl in Fig. 1. Fig'. =1Ais :i View siinihir to Fig. 3, showing.;- more clearly the position. ofthe knot :it th.` ronchlsion oi the tufting operation..

Referring to the drawings, 1t) repreents n rerirn'ountiin; needle-bnrwhich carries n. needle 1l. 'llu lulr l() siirlef; within n guide frnme'12,nnll the hitter is nioi'nhljy mounted in n fixed huid ol' thetnttine` nnirhine. The bur l() nml guide-(ruine .lit nre, ,independentlyoperated :it the proper tinn` through suitnhle levers. not fehown. Twineitl pescs downwnrd long the needle-har 10 :tml pnfes through un eye neorthe point of the needle 1l. When n :mittleres 1li passed between theguide-traine l :nul lume-immo 1S, the first. umu-ment in the operation0f the mnrhins .-:iuseh the guide-tranne to dew-eno upon lluupperrui-fare of the mntt'resh4 il? und Lightly roniprnss the nnlttreselilling 2U. :ittrr which the needle-bnr l0 clesounds :ind driwf: theneedle 11 transversely through the mnturess 1G. The initiul movement ofneedle ll. enr-ries the free or loner: em'l ol' twine Jil through themattress und into nn opening :i in thi` l'msefi'rnme 1S to n rolurytwiiw gripping; .mechanism where. thv lrerrnd ol' the twine. is @night:nul held in r trnin while needle Il is withilrunn vri-tn :illy from themnttres. When needle 1l rmnlwh` npproxinmtely the limit of its upwardtravel its position within head 15 is shifted lightlyI` causing theneedle on its next stroke to penetrate the mattress 16 a little to oneside of its first entrance so as to form a loop in the twine, the twineforming the loop being subse* quently tied together at the bottom of themattress and completing the band and within which a part ot the lling 2Ois caught. It will be observed, that on the second downward stroke ot'needle Il, twine 19 extends backward from thc eytI alongr both sides ofthe needle, the twine at this time assuming a U-shaped loop with thepointed end of the needle at the apex. This apex of the twine Vloopmoves with the needle through thd mattress and is brought into properrelation with a suitable loop-turning mechanism 26 by which a loop isformed in the twine, after which cross hook 27 moves over and throughsaid turned loop and by catching the end ot' twine ll as it is freed bythe rotary twine gripping mechanism lf said Jfree end is drawn throughsaid turned loop and the tyint,r ot' the knot completed` Cross hook 2Tal'ter pulling the tree end of twine 19 through the loop retains its4hold thereon while the needle ll is being withdrawn from the mattress 1Vand knot 2H is being` drawn tight. lVhen needle l1 has passed above thetwine cutting knife 30 the latter is actuated so as to sever the twineat which time the cross hook 2T frees the lower end of twine 1S) so asto allow the mattress to be shifted to the point where it is desired vto form the next tie.

It will be noted from the above description that each band is composedof two Strands of twine 19, which band is closed by means of the knot28, and that, first, a third strand, indicated by the numeral 21,extending from the knot 2S up through the mattress 16 to the twinecuttin; lr knife 30, represents an amount of twine which is an absoluteloss. Since an average mattress contains about forty ol these hands itreadily becomes apparent that an excessive amount of twine is wasted.Second, after a inattress is completely tufted, under the. above method,the mattress must be turned bottom side up to permit removal of the longdanglingn ends of the third. strands 21, which results in the loss ot'much time and expense of labor.

The hereinabove described mechanism and results secured thereby, aresubstantially an embodiment ol' the construction shown in U. S. LettersPatent No. 1,193,708, August 8, 1916, and it is to eliminate the abovementioned waste of twine, and the expense ot labor involved in turningrthe mattresses over, for the removal of the dangling waste ends of thetwine, which constitutes the chief objects of thc present invention, andthe manner in which said objects are attained and the mechanism employedwill now be described.

The construction and operation of the needle 11 and other mecl'ianism inhead l5 are the same as has heretofore been describedl The rotary twinegripping mechanism 24, and loop turning mechanism 26 are actiiatcdthrough suitable cams which are arranged in the rear of disk 39 (seeFig'. 2) on the main drivingr sha ft llt), and these are old in the art.The cross hook 27 is actuated through a rockingarm 35 by means of afriction-roller liti engaging a carin-groove 37 which surrounds cam thelatter being carried by the disk 39. The contour of cam 3S controls themovements of cross hook 27, through arm 255, substantially as follows:With cam 38 rotating in the direction of the arrow in Fig. Q, thatportion ot' the tace ol' the cam between points A, and B has no eti'ectupon roller 3U and arm 35, so that cross hook' 2T is standing idle andat one side of the path ot' travel ol needle l1. During this period ol'time, however, the other mechanism of the machine is operating;r to moreneedle V1l so as to thread twine '19 through the mattress in theformation ot the band; the rotary twine gripping mechanism 24 alsooperating' to catch and hold the end of' the twine; and the loop turningmechanism 26 operating to twist the twine in the formation ot the loop.Then cam extension (il of cam 3o, however, contacts roller 3G the latteris Vforced outward from the axis of the cam, causing the upper end ofarm 3o to more cross hook Q7 inwardly to catch the end of twine held inrestraint by the rotary twine gripping;r mechanism, and as roller 3Gpasses over the apex of and down the opposite side of cam extension C,said cross hook 27 is moved backward and pulling the end of the twine(which is new released by the rotary twine gripping mechanism throughthe twisted loop formed by the loop turning mechanism 2G, completing thetying ot' the knot Needle 11 now starting to more vertically inwithdrawing from the mattress, cross hook 27 is suddenly moved inwardlyand instantly freeing the twine end so as to allow the band to move alonwith the needle and move knot 28 throng the mattress from the bottom tothe top thereot'- the band movin over the tufts 45 similar to a beltpassing over pulleys. This sudden movement of hook 27 is to 1nstantly'free the twine before the needle has moved upward any considerabledistance, and in fact the needle moves only a Sullieient distance topull the knot tight before the end of the twine is released by crosshook 27, after which the band is allowed to more along with the needle11, said movement of hook 27 being accomplished by the contact of roller36 with face D of cam eX- tension E, said face extending approximatelyat right angles across the path of rotation of cam 38. It Will be notedthat cxtension E is of Considerable length which is intended to hold thelower end o't' arm 35 outward and the upper end of said arm and crosshook 27 inward a sulyieient period of time to allow knot 28 and free endot the twine to he freely withdrawn through opening 2Q in hase-frame 13,as the hand is moved under the influence ot' needle 11. ihen knot 29reaches the upper surface of the mattress, the needle ll will haveCleared twine Cutting knife il() allowingr the latter to sever thestrand of twine extending from knot 28 to the twine supply source. Thetwine end thus formed is romparatirely short, torresponding;r in lengthto that of the original twiml end and hoth ends being suieiently Shortto require no further Putting.

Haringr thus fully desrrihed my said invention. hat I desire to Securehy Letters Patent, is`

l. In a mattress tufting marhine, the conn hination. with areriproeating needle for carrying the twine through the mattress. meanstor temporarily holding the end otI the twine in restraint. loop-turningmeans adapted to rateh and turn a loop in the twine, a` rross-hookadapted to Catch the end ot' the twine when freed by the twine f-"l Tm;means and for pulling said twine `nd through the twisted loop forrompleting the knot, and means actuating said rross hook for releasingthe twine end when the knot is drawn tight and before the needlerein-hes the upper end ot' its stroke.

2. In a mattress tutting machine, the combination, with a reciprocatingneedle for rarrying the twine through the mattress, .neans l'orteml'lorarily holding the end of the twine in restraint, loop turningmeans adapted to eatrh and turn a loop in the twine. a cross-hookadapted to eateh the end of the twine when freed by the twine holding*means and for pulling said twine end through the twisted loop lorrempli-ting the knot` shiftingr means for moving said hook to free thetwine when the knot is drawn tight und hetnre the needle reaches theupper mul of its stroke. and means for actuating' said shitting;r means.

3. ln a mattress tufting machine, the romhination, with a reciprocatingneedle for earrying the twine through the mattress, means fortemporarily holding' the end of ,the twine in restraint, loop turningmeans adapted to catrh and turn a loop in the. twine, a 'rosshookadapted to ratffh the end of the twine when freed hy the twine holding;rmeans and for pulling said twine end through the twisted lool'rt'orcompleting the knot, and a cam actuating' said cross-hook tor releasingthe twine end when the knot is drawn tight and before the needle reachesthe upper end of its stroke.

l. ln a mattress tufling nuuhine, the eomhination` with areciprin-ating` needle for rari-ying: the twine through the mattress,means l'or temporariliY holding the end of the twine in restraint. loopturning means adapted to rateh and turn a loop in the twine. a erosshookadapted to catch the end of the twine. when freedhy thetwine holdingmeans and for pullingr said twine end through the twisted loop toreompletinp,r the knot, shifting,- means for moving said hook to free thetwine when the knot is drawn tight and before the needle rearhes theupper end o'f its stroke, and a cam for aetuatingv said shitting means.

In witness whereof` I have hereunto ,set my hand and seal atIndianapolis, Indiana, this 20th day of April, A. D. one thousand ninehundred and sixteen.

GUY DILLoN. p.. 8.]

